MS Oosterdam (/ˈoʊstərdæm/ OH-ster-dam) is a Vista class cruise ship of the Holland America Line, a division of Carnival Corporation & plc.

Oosterdam was christened by Princess Margriet of the Netherlands in Rotterdam on 29 July 2003, Holland America Line's founding city.

The ship's potable water is produced by three large Alfa Laval multi-effect flash evaporating desalination plants.

[7] After January 2012, Holland America paused visits to Mexico's west coast, in part due to safety concerns there in connection to the Mexican Drug War and in part due to the depressed cruise market in Southern California; the Oosterdam shifted to Hawaii, Australia, and the South Pacific.

[8] Holland America was the first cruise line to resume service to Mazatlán in the autumn of 2013 with MS Veendam, and Oosterdam followed suit shortly thereafter.